Gregory B. McMahill, O.D.
Optometrist · Palm Desert, CA
Gregory B. McMahill, O.D. is an optometrist with a practice address in Palm Desert, California, and NPI 1366505588, issued on Dec 19, 2006. Check the license (California OPT 9489 TPA, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory B. McMahill
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- OPT 9489 TPA CA
Self-reported in NPPES; status is on the state search - Practice location
- 72800 Dinah Shore Dr, Palm Desert, CA 92211
- Phone
- (760) 202-0100
- Enumerated
- Dec 19, 2006
- Record last updated
- Jun 6, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (760) 202-0121
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 72800 Dinah Shore Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Kern, RPHPharmacist1043657026
- Joy MajorsPharmacist1972944767
- Teresa McCallister, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1902064736
- Santo Milosevich, PHARMDPharmacist1346681145
- Joseph Munoz, PHARMDPharmacist1801163977
Verify Gregory B. McMahill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license OPT 9489 TPACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average optometrist in 2024
63 Medicare Part D claims for 36 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $639.88
7 payments; by number, the most common kind was food and beverage; the largest payer was Johnson & Johnson Vision Care, Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Gregory B. McMahill among 8,308 optometrist records in California
Gregory B. McMahill, O.D. is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 66% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2014 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
21 optometrist records list a practice address in Palm Desert
They are 21 of the 1,495 NPPES records with a practice address in Palm Desert, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Palm Desert → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Alyssa Buchanan, ODPalm Desert, CA 922111720462245
- Audrey Chen, ODPalm Desert, CA 922111750546156
- Daniel Eng, O.D.Palm Desert, CA 922111447391693
- Stephen Keller, O.D.Palm Desert, CA 922111770550345
- Vincent De Francisco, ODIndian Wells, CA 922101134286719
- Jeffrey Lowman, ODNone, CA 922101922764596
- Richard Packard, O.D.Indian Wells, CA 922101942358320
- Tina Vu, O.D.Indio, CA 922031194876961
Common questions
What is Gregory B. McMahill, O.D.'s NPI number?
Gregory B. McMahill, O.D.'s National Provider Identifier (NPI) is 1366505588, issued on Dec 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory B. McMahill, O.D. located?
The NPPES record lists a practice address at 72800 Dinah Shore Dr, Palm Desert, CA, 92211. Phone: (760) 202-0100. Providers update this record themselves, so call before visiting.
How can I verify Gregory B. McMahill, O.D.'s license?
NPPES lists California license number OPT 9489 TPA, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory B. McMahill, O.D. prescribe under Medicare Part D?
In 2024, Gregory B. McMahill, O.D. had 63 Medicare Part D claims for 36 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.